
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  ** This notice applies to any and all portions of this file
  * that are not between comment pairs USER CODE BEGIN and
  * USER CODE END. Other portions of this file, whether 
  * inserted by the user or by software development tools
  * are owned by their respective copyright owners.
  *
  * COPYRIGHT(c) 2018 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  *   1. Redistributions of source code must retain the above copyright notice,
  *      this list of conditions and the following disclaimer.
  *   2. Redistributions in binary form must reproduce the above copyright notice,
  *      this list of conditions and the following disclaimer in the documentation
  *      and/or other materials provided with the distribution.
  *   3. Neither the name of STMicroelectronics nor the names of its contributors
  *      may be used to endorse or promote products derived from this software
  *      without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f1xx_hal.h"
#include "spi.h"
#include "usart.h"
#include "gpio.h"

/* USER CODE BEGIN Includes */
#include "stdlib.h"
#include "string.h"
#include "tools.h"
#include "oled.h"
#include "CC1101.h"
/* USER CODE END Includes */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);

/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/

/* USER CODE END PFP */

/* USER CODE BEGIN 0 */
void frequentTest()
{
    uint8_t ch = 0, changeCH[3] = {0xAA, 0x55, 0x00};
    uint8_t msg[4] = {0x55, 0xAA }, length, buffer[4 + 2];
    uint16_t count = 0 , err = 0, ok = 0, countInMsg = 0;
    uint32_t start;
    
    //查找空中频道0是否有信号,有信号进入接收模式,没有信号进入发送模式
    //清空RX_FIFO
    CC1101_Clear_RxBuffer;
    //设置频道为0
    CC1101_Set_CH(0);
    //进入RX模式
    CC1101_Rx_Mode;
    //开启计时器
    start = HAL_GetTick();
    //尝试在频道0获取消息,直到超时
    while((CC1101_Read_Status(CC1101_MARCSTATE) != STATE_IDLE) && ((HAL_GetTick() - start <= 1000)));
    //检查是否有消息
    if(CC1101_Read_Status(CC1101_MARCSTATE) == STATE_IDLE)
    {
        ///////////////////////////////////////////////////////////////////////////////////////////////////////////
        //获得消息,进入接收模式
        //清空RX FIFO
        CC1101_Clear_RxBuffer;
        //开始接收和统计数据
        while(1)
        {
            //进入接收模式
            CC1101_Rx_Mode;
            //等待数据
            while(CC1101_Read_Status(CC1101_MARCSTATE) != STATE_IDLE);
            //查看数据长度
            length = CC1101_Read_Reg(CC1101_RXFIFO);
            //检验数据长度是否正确
            if(length != 3 && length != 4)
            {
                //错误数加1
                err++;
                //重新循环
                continue;
            }
            //校验RX Buffer中数据个数是否正常
            if(CC1101_Get_RxCounter != length + 2)
            {
                //错误数加1
                err++;
                //重新循环
                continue;
            }
            //读出消息和CRC,RSSI部分
            CC1101_Read_Multi_Reg(CC1101_RXFIFO, buffer, length + 2);
            if((buffer[length + 2 - 1] & CRC_OK) == 0)
            {
                //错误数加1
                err++;
                //重新循环
                continue;
            }
            //查看数据长度是不是msg的长度,或者是改变频率的命令
            switch(length)
            {
                //改变频率命令
                case 3:
                    //检验前两个字节是否正常
                    if(buffer[0] != 0xAA || buffer[1] != 0x55)
                    {
                        err++;
                        continue;
                    }
                    //改变接收频率
                    CC1101_Set_CH(buffer[2]);
                    err = 0;
                    ok = 0;
                    countInMsg = 0;
                    //打印频道
                    display_GB2312_string(0, 0, (uint8_t*)"CH:");
                    print_byte(0, 40, buffer[2]);
                    break;
                
                //正常消息
                case 4:
                    //检验前两个字节是否正常
                    if(buffer[0] != 0x55 || buffer[1] != 0xAA)
                    {
                        err++;
                        continue;
                    }
                    //正常无错误包计数加1
                    ok++;
                    //查看消息中发包的个数
                    countInMsg = (uint16_t)buffer[2];
                    //打印包正常数量
                    display_GB2312_string(2, 0, (uint8_t*)"OK:");
                    print_uint16(2, 40, ok);
                    //打印错误包数量
                    display_GB2312_string(4, 0, (uint8_t*)"Err:");
                    print_uint16(4, 40, err);
                    //打印实际差值
                    display_GB2312_string(6, 0, (uint8_t*)"InMsg:");
                    print_uint16(6, 50, countInMsg - ok);
                    break;
                
            }
        }
    }
    else
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////////////////
        //没有消息,设置为发送模式
        //消息计数清0
        count = 0;
        while(1)
        {
            //消息计数加1
            count++;
            //将消息计数写入消息
            msg[2] = (uint8_t)count;
            msg[3] = (uint64_t)(count >> 8);
            //发送消息,4字节 0x55 0xAA count
            led_on();
            CC1101_Tx_Packet(4, msg);
            //等待发送完成
            while(CC1101_Read_Status(CC1101_MARCSTATE) != STATE_IDLE);
            led_off();
            //打印消息计数
            display_GB2312_string(0, 0, (uint8_t*)"Count:");
            print_uint16(0, 50, count);
            //打印频道
            display_GB2312_string(2, 0, (uint8_t*)"CH:");
            print_byte(2, 50, ch);
            //查看按键是否按下,如果按下就切换下一频率
            if(key_check() == KEY_DOWN)
            {
                //当前频道加1
                ch++;
                //count清零
                count = 0;
                changeCH[2] = ch;
                //发送切换命令, 0xAA, 0x55, 频道号码ch
                CC1101_Tx_Packet(3, changeCH);
                //切换频道
                CC1101_Set_CH(ch);
                //延时防抖,小灯闪烁,表示切换
                start = HAL_GetTick();
                while(HAL_GetTick() - start <= 1000)
                {
                    led_invert();
                }
                led_off();
            }
            //等待10ms发送下一个包
            HAL_Delay(10);
        }
    }
}
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  *
  * @retval None
  */
int main(void)
{
  /* USER CODE BEGIN 1 */
  /* USER CODE END 1 */

  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_SPI1_Init();
  MX_USART1_UART_Init();
  /* USER CODE BEGIN 2 */
  
  HAL_Delay(300);
  initial_lcd();
  CC1101_Init();
  clear_screen();
  CheckUpdataAction();
  
  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  
  while (1)
  {
  /* USER CODE END WHILE */
  /* USER CODE BEGIN 3 */
    frequentTest();
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{

  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;

    /**Initializes the CPU, AHB and APB busses clocks 
    */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

    /**Initializes the CPU, AHB and APB busses clocks 
    */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }

    /**Enables the Clock Security System 
    */
  HAL_RCC_EnableCSS();

    /**Configure the Systick interrupt time 
    */
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);

    /**Configure the Systick 
    */
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}

/* USER CODE BEGIN 4 */
/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @param  file: The file name as string.
  * @param  line: The line in file as a number.
  * @retval None
  */
void _Error_Handler(char *file, int line)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  while(1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
